At the heart of Steven Spielberg's "Lincoln" is a quiet scene between President Abraham Lincoln (Daniel Day-Lewis) and two young men, Samuel Beckwith (Adam Driver) and David Homer Bates (Drew Sease), in an otherwise empty telegraph cipher office. Lincoln has to make a crucial decision: Does he consider a peace proposal from a Confederate delegation on its way to Washington, and thus perhaps immediately end the bloody Civil War that has claimed the lives of more than half a million Americans, knowing that it would doom his attempt to pass the Thirteenth Amendment to the Constitution, officially banning slavery in the United States? Or does he try to legally solidify and extend his Emancipation Proclamation by getting the Thirteenth Amendment passed during a narrow window of opportunity (during the lame duck session of Congress between his re-election and second inauguration) at the cost of extending the war?